#include <iostream>
#include "configure.h"

#ifdef USE_CUSTOM_MATH_LIBRARY
    #include "MyMath.h"
#endif  

int main()  
{
    int a = 10;
    int b = 5;
#ifdef USE_CUSTOM_MATH_LIBRARY
    // 自定义库
    math_add(a, b);
#else 
    std::cout << "add(" << a << "," << b << ") = " << (a+b) << "\n";   
#endif  
    
    return 0;
}